The extra eyelet at the top of running sneakers has puzzled us for years — what is it for?!
Turns out that extra hole helps runners tie their shoes extra tight with a “lace lock” or “heel lock” method.
————————————————–
Follow BI Video on Twitter: http://bit.ly/1oS68Zs
Follow BI on Facebook: http://bit.ly/1W9Lk0n
Read more: http://www.businessinsider.com/
————————————————–
Business Insider is the fastest growing business news site in the US. Our mission: to tell you all you need to know about the big world around you. The BI Video team focuses on technology, strategy and science with an emphasis on unique storytelling and data that appeals to the next generation of leaders – the digital generation.